# SelectFields class
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields"></a>

The `SelectFields` class creates a new `DynamicFrame` from an existing `DynamicFrame`, and keeps only the fields that you specify. `SelectFields` provides similar functionality to a SQL `SELECT` statement.

## Example
<a name="pyspark-SelectFields-examples"></a>

We recommend that you use the [`DynamicFrame.select_fields()`](aws-glue-api-crawler-pyspark-extensions-dynamic-frame.md#aws-glue-api-crawler-pyspark-extensions-dynamic-frame-select_fields) method to select fields from a `DynamicFrame`. To view a code example, see [Example: Use select\$1fields to create a new `DynamicFrame` with chosen fields](aws-glue-api-crawler-pyspark-extensions-dynamic-frame.md#pyspark-select_fields-example).

## Methods
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-_methods"></a>
+ [\$1\$1call\$1\$1](#aws-glue-api-crawler-pyspark-transforms-SelectFields-__call__)
+ [apply](#aws-glue-api-crawler-pyspark-transforms-SelectFields-apply)
+ [name](#aws-glue-api-crawler-pyspark-transforms-SelectFields-name)
+ [describeArgs](#aws-glue-api-crawler-pyspark-transforms-SelectFields-describeArgs)
+ [describeReturn](#aws-glue-api-crawler-pyspark-transforms-SelectFields-describeReturn)
+ [describeTransform](#aws-glue-api-crawler-pyspark-transforms-SelectFields-describeTransform)
+ [describeErrors](#aws-glue-api-crawler-pyspark-transforms-SelectFields-describeErrors)
+ [Describe](#aws-glue-api-crawler-pyspark-transforms-SelectFields-describe)

## \$1\$1call\$1\$1(frame, paths, transformation\$1ctx = "", info = "", stageThreshold = 0, totalThreshold = 0)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-__call__"></a>

Gets fields (nodes) in a `DynamicFrame`.
+ `frame` – The `DynamicFrame` to select fields in (required).
+ `paths` – A list of full paths to the fields to select (required).
+ `transformation_ctx` – A unique string that is used to identify state information (optional).
+ `info` – A string that is associated with errors in the transformation (optional).
+ `stageThreshold` – The maximum number of errors that can occur in the transformation before it errors out (optional). The default is zero.
+ `totalThreshold` – The maximum number of errors that can occur overall before processing errors out (optional). The default is zero.

Returns a new `DynamicFrame` that contains only the specified fields.

## apply(cls, \$1args, \$1\$1kwargs)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-apply"></a>

Inherited from `GlueTransform` [apply](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-apply).

## name(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-name"></a>

Inherited from `GlueTransform` [name](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-name).

## describeArgs(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-describeArgs"></a>

Inherited from `GlueTransform` [describeArgs](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeArgs).

## describeReturn(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-describeReturn"></a>

Inherited from `GlueTransform` [describeReturn](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeReturn).

## describeTransform(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-describeTransform"></a>

Inherited from `GlueTransform` [describeTransform](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeTransform).

## describeErrors(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-describeErrors"></a>

Inherited from `GlueTransform` [describeErrors](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeErrors).

## describe(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-SelectFields-describe"></a>

Inherited from `GlueTransform` [describe](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describe).